San Mateo County property record for 809 Irwin Ct, Hillsborough, CA 94010 · Last verified July 2026
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 4.5 ba · 5,795 sqft · built 1928 |
| Lot Size | 0.903 acres (39,314 sqft) |
| Owner | 2 Company Names on File |
| Last Sale | $5,300,000 (Mar 2009) |
| Tax Bill | $86,343 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 028-081-040 |
| Primary APN | 028-081-040 |
|---|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 4.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 13 Rooms |
| Stories | 2 Stories |
| Building Area | 5,795 sqft Living Area |
| Gross Area | 6,295 sqft |
| 1st Floor Area | 2,875 sqft |
| 2nd Floor Area | 1,245 sqft |
| Basement Area | 500 sqft |
| Family Room | Family Room |
| Study | Study |
| Year Built | Built 1928 |
|---|---|
| Effective Year Built | Effective 1928 |
| Lot Area | 39,314 sqft (0.903 acres) |
| Garage Type | Basement |
| Garage Area | 220 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 809 IRWIN CT |
|---|---|
| City | HILLSBOROUGH |
| State | CA |
| Zip | 94010-6326 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | BEING NE 1/4 OF LOT 9 & SE 1/4 OF LOT 10 MAP OF IRWIN PROPERTY RSM 11/52 53 TOWN OF |
| Legal Subdivision | MAP OF IRWIN PROPERTY |
| Legal Lot Number | 9,10 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 1 |
| Census Block | 1014 |
| Census Tract | 605600 |
Source: San Mateo County records · APN 028-081-040
Assessment roll updated July 15, 2026 · Last verified July 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Company Names on File |
|---|---|
| Mailing Address | 809 IRWIN CT, HILLSBOROUGH, CA 94010-6326 |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Mar 11, 2009 · Amount on Record |
| Deed Sale | Mar 11, 2009 · Amount on Record |
| Prior Sale | Feb 15, 2008 · Amount on Record |
| Deed Document Number | 200926337 |
| Prior Transfer Date | Apr 02, 1997 |
| Prior Transfer Doc | 0000072480 |
| Record Updated | Sep 20, 2026 |
Source: San Mateo County records · Assessment roll updated July 15, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | San Mateo County |
| Municipality | Hillsborough Town |
| Elementary School District | Hillsborough City Elementary School District (KG - 08) |
| Secondary School District | San Mateo Union High School District (09 - 12) |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $7,321,010 (+2%) Land $6,567,601 Building $753,409 | ||
| 2025 | $86,343.00 (+3.68%) | $7,177,462 (+4.04%) Land $6,438,825 Building $738,637 | |
| 2023 | $83,277.00 (+4.29%) | $6,898,756 Land $6,188,799 Building $709,957 | $7,314,660 |
| 2022 | $79,849.00 |
Source: FEMA National Flood Hazard Layer, San Mateo County (06081C), updated September 10, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060816056001, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Flood Insurance Cost | Premium on Record median of 4 individual NFIP policies nearby |
| Nearby Flood Policies | 4 in force 3 of 4 on primary residences |
| Nearby Flood Claims | 3 (1998–2023) |
| Claims Outside the SFHA | 3 of 3 |
| Most Recent Claim | Jan 2023, rainfall accumulation, Severe Winter Storms, Flooding, Landslides, And Mudslides |
| Wildfire Risk | Low above 3% of the US · above 2% of California |
|---|---|
| Wildfire Likelihood | Less than 1 in 10,000 per year |
| Exposure | Direct burnable vegetation at the parcel |
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
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